Package groovy.util.logging

## Annotation Type Slf4j

-     @Documented
      @Retention(SOURCE)
      @Target(TYPE)
      public @interface Slf4j

  This local transform adds a logging ability to your program using LogBack logging. Every method call on a unbound variable named log will be mapped to a call to the logger. For this a log field will be inserted in the class. If the field already exists the usage of this transform will cause a compilation error. The method name will be used to determine what to call on the logger.

       log.name(exp)

  is mapped to

       if (log.isNameLoggable() {
          log.name(exp)
       }

  Here name is a place holder for info, debug, warning, error, etc. If the expression exp is a constant or only a variable access the method call will not be transformed. But this will still cause a call on the injected logger.
  Since:
    1.8.0

- - ### Optional Element Summary

    Optional Elements
    Modifier and Type | Optional Element | Description
    --- | --- | ---
    `String` | `category` |
    `Class<? extends LogASTTransformation.LoggingStrategy>` | `loggingStrategy` |
    `String` | `value` |
    `String` | `visibilityId` | If specified, must match the "id" attribute in a VisibilityOptions annotation to enable a custom visibility.

- - ### Element Detail

    - #### value

          String value

      Default:
        "log"

  - - #### category

          String category

      Default:
        "##default-category-name##"

  - - #### visibilityId

          String visibilityId

      If specified, must match the "id" attribute in a VisibilityOptions annotation to enable a custom visibility.
      Since:
        3.0.0
      Default:
        "<DummyUndefinedMarkerString-DoNotUse>"

  - - #### loggingStrategy

          Class<? extends LogASTTransformation.LoggingStrategy> loggingStrategy

      Default:
        groovy.util.logging.Slf4j.Slf4jLoggingStrategy.class